اثر پیش تیمار ملاتونین بر پاسخ‌های رشدی و تقویت سیستم آنتی اکسیدانی آنزیمی در ریزجلبک کلرلا ولگاریس (Chlorella vulgaris) تحت تنش پرتوهای یونزا

نویسندگان

1 دانشگاه کاشان

2 دانشگاه پیام نور

چکیده

ملاتونین به عنوان یک ترکیب ساخته شده توسط فتوسنتز کننده ها، از آن ها در برابر بسیاری از تنش های محیطی محافظت می کند. مکانیسم های تعدیل در محافظت ملاتونین به طور دقیق در یوکاریوت های ابتدایی مانند جلبک ها شناخته شده نیست. در این تحقیق سعی شده تا اثر پیش تیمار ملاتونین در ایجاد مقاومت جلبک کلرلا ولگاریس به پرتوهای یونزای گاما مورد بررسی قرار بگیرد. نتایج نشان داد که غلظت  100 میکرومولار ملاتونین، افزایش معنی داری را در رشد و فعالیت آنزیم آسکوربات پراکسیداز، بعنوان یکی از اجزاء سیستم آنتی اکسیدان آنزیمی داشته است.  
 

کلیدواژه‌ها


عنوان مقاله [English]

The effect of Melatonin pretreatment on growth responses and enhancement of the enzymatic antioxidant system in Chlorella vulgaris under stress of ionizing radiation

نویسندگان [English]

  • Seyed Ali Hosseini Tafreshi 1
  • Payman Aghaie 2
  • Ahmad Ramezani moghadam 1
  • Mohammad Amin Toghyani 1
چکیده [English]

Melatonin as a compound made by photosynthetic organizers protects them against many environmental stresses. Modulating mechanisms of melatonin, as a protector are not well known in early eukaryotes, such as algae. In this research, the effect of melatonin pre-treatment on evaluating Chlorella vulgaris resistance to gamma ionizing radiation was investigated. The results showed that 100 µM concentrations of melatonin had a significant increase in the growth of algal cell and activity of the ascorbate peroxidase enzyme as one of the components of the enzymatic antioxidant system.
 

کلیدواژه‌ها [English]

  • alga Chlorella vulgaris
  • Melatonin
  • Gamma radiation
  • enzymatic antioxdant system
  • Growth and physiology
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